err12是过电压保护报警。
解决方法：测定连接器及端子台的L1，L2, L3线电压。 ①输入正确的电压，拆除无功补偿电容器。 ②用万用表测量驱动器端子P-B间的外置电阻 的电阻值，∞表示断线。应更换外置电阻。 ③改变为所指定再生电阻值瓦数。 ④更换新的驱动器。 ⑤确认 Pr0.16 的设定值。
MADDT1207 MAMA012P1G MAMA022P1G MAMA042P1 MAMA082P1G M
MBDDT2210 M MDMA102P1G MDMA15AP1G MDMA202P1G MDMA252P1G
MCDDT3120 MDMA402P1G MDMA502P1G MSMA012P1G MSMA022P1G MSMA042P1G
MCDDT3520 MSMA082P1G MSMA102P1G MHMA102P1G MHMA152P1G MHMA202P1G
MDDDT5540 MHMA302P1G MHMA452P1G MDMA102S1G MDMA152S1G MDMA202S1G
MEDDT7364 MDMA302S1G MDMA402S1G MHMA052S1G MHMA102S1G MHMA152S1G
MFDDTA390 MHMA202S1G MHMA302S1G MHMA402S1G MHMA502S1G MFMA042S1G
MFDDTB3A2 MFMA042S1G MFMA042P1G MFMA152P1G MFMA152S1G MSDA3A1A1A MSMA2AZA1G MSDA203A1A MSMA202A1G MSDA5A1A1A MSMA5AZAIG MSDA253A1A MSMA252A1G MSDA011A1A MSMA011AIG MDDA203A1A MDMA202A1G MSDA3A3A1A MSMA3AZA1G MDDA253A1A MDMA252A1G MSDA5A3A1A MSMA5AZA1G MFDA253A1A MFMA252A1G MSDA013A1A MSMA012A1G MGDA123A1A MGMA122A1G MSDA023A1A MSMA022A1G MHDA203A1A MHMA202A1G MSDA021A1A MSMA021A1G MSDA303A1A MSMA302A1G MSDA043A1A MSMA042A1G MSDA353A1A MSMA352A1G M M MSDA403A1A MSMA402A1G M M MSDA453A1A MSMA452A1G MSDA503A1A MSMA502A1G MDDA303A1A MDMA302A1G MSDA041A1A MSMA041A1G MDDA353A1A MDMA352A1G MSDA083A1A MSMA082A1G MDDA403A1A MDMA402A1GM M MDDA453A1A MDMA452A1G MFDA043A1A MFMA042A1G MDDA503A1A MDMA502A1G MGDA033A1A MGMA032A1G MFDA353A1A MFMA352A1G MFDA453A1A MFMA452A1G MGDA203A1A MGMA202A1G MSDA103A1A MSMA102A1G MGDA303A1A MGMA302A1G MSDA153A1A MSMA152A1G MGDA453A1A MGMA452A1GMDDA083A1A MDMA082A1G MHDA303A1A MHMA302A1G MDDA103A1A MDMA102A1G MHDA403A1A MHMA402A1G MDDA153A1A MDMA152A1G MHDA503A1A
（松下A5-A5Ⅱ系列伺服驱动器型号对应）
松下MADKT1505E升级替代MADHT1505E
松下MADKT1507E升级替代MADHT1507E
松下MADKT1505CA1升级替代MADHT1505CA1
松下MADKT1507CA1升级替代MADHT1507CA1
松下MADKT1505CA1升级替代MADHT1505
松下MADKT1507CA1升级替代MADHT1507
松下MBDKT2510E升级替代MBDHT2510E
松下MBDKT2510CA1升级替代MBDHT2510
松下MBDKT2510CA1升级替代MBDHT2510CA1
松下MCDKT3520E升级替代MCDHT3520E
松下MCDKT3520CA1升级替代MCDHT3520
松下MCDKT3520CA1升级替代MCDHT3520CA1
松下MDDKT3530E升级替代MDDHT3530E
松下MDDKT5540E升级替代MDDHT5540E
松下MDDKT3530CA1升级替代MDDHT3530
松下MDDKT5540CA1升级替代MDDHT5540
松下MDDKT3530CA1升级替代MDDHT3530CA1
松下MDDKT5540CA1升级替代MDDHT5540CA1